That is a very difficult question to answer, because it varies with each individual. It varies with each individual's ability to deal with stress and the balance of life and their family life and everything else. There are times in a person's life when they're juggling too many stressors and even one rotation may be difficult for them. For others, depending on what the job is and what the requirements are....
The biggest thing is being prepared for the job and knowing exactly what has to be done, what it entails. Appearing here helped us; we went through some previous notes and so on. There's an educational process in preparing people to go.
So it varies with each person. You can't really say, or I personally can't say; one person sees it as a valued experience and another person sees it as a stress.
As to how we determine whether people can go, we basically have said that people should be 18 months back after a rotation. You shouldn't have any deployment after...or you should be back after 18 months. But that's unless you say that you really want to go and you have no problems. Then we do a further evaluation of your life circumstances and determine whether in fact you want to go. But by and large, the individual himself determines whether they're ready to go or not. And that's in all medicine; it's really up to the individual.
So if they want to go and everything seems to be good--the evidence shows that they have no other complaints going on or that no other background things may not be right--then the member is able to go.